Our adult baby 19-year old HuCow Vina is the 1st to try our fresh Cow Milker!! You have been asking for it! There are a small in number problems to overcome. A HuCow merely has 2 udders, so we have to block off the other 2 prostate stimulation cups, which makes the vacuum (that is already much stronger than on the goat milker) double in force. So we now have a machine that is about 4 times as meaty as the goat milker, it can literally engulf a girl’s nipps off!! We need to be careful about the settings, we don’t crave to injury our poor Vina!